Yes, there is a museum exhibit in Tokyo that is all about toilets and what goes in the toilet. According to Time, a major draw at the exhibit is a large playground that looks like a toilet with kids going up stairs to then go down a slide as if they were being flushed down the toilet. They do this while wearing hats that look like…you guessed it…what goes in the toilet!
Now, there is a point to this and that is to teach children about how toilets work in a really fun and unique way.